Tobacco-pipe.



PATENTED JUNE 16, 1908.

F. F. AUSTIN. TOBACCO PIPE.

APPLICATION IPILED FEB. 6, 1907.

2 SHEETS-SHEET 1.

1 ll-I'l I 'l Il Illl II I'll No. 890,751. PATENTED JUNE 16, 1908.

F. F. AUSTIN. TOBACCO PIPE. APPLIGATION FILED FEB. 6, 1907.

2 SHEETSSHEET 2.

- is effectively cooled and dried in' its passage through the stem, the moisture retained in UNITED STATES, PAT NT FRANK F. AUSTIN, OF "CHICAGO, I LLINOIS.

TOBACCO-RIPE.

4 noseowsl;

-To alt whom it mag -concern." Be i" known that I, FRANK F. AUsTIN, a citizen of the United States, residing at Chicago, in the county-of Cook-and State of Illinois, have invented certain new and useful Improvements in Tobacco-Pipes, of which the following is a specification. My invention relates to tobacco pipes and .has for its object to provide pipes of new and improved construction, wherein the smoke the lower part of the stem, and in which parts may be conveniently removed for purposes of cleaning. 0 x

More particularly, the invention relates to roviding the stem of the pipe with a plug urnished with a finger-piece-by which it may be readily removed from the stemj; and in ,forming in this plug a circuitous, preferably I helical smoke assage-Way communicating .at one end wit the bowland at the other with the bore in thejbi-t I V p The invention has for a further object, to

form in the-stem of the pipe asepara te air duct through which a draft of cool air may enter the stem to causejthecondensation of moisture in the lower part ofthe smoke. pas- .sage. While this latter arrangement may be illtlllZBd in pipes of various constructions, it .is, perhaps, particularly adaptedto my preferred form of construction, in which the stem is provided with aremovable plug, be}- .eause the air duct in this case maybe formed centrally in the .plug so as'to serve also to cool the smoke passin through the helical smoke passage-way. This and such other objects as may hereafterappear are attained .by my invention, convenient embodiments of WlllCll are illustrated in the accompanying drawings, in which f j v Figure 1 is a longitudinal section through a pipe illustrating the features of nay-invention; Fig. 2 a longitudinal section through the removable plug; Fig.' 3 a view similar to a 'Fig. 1 of a modified form. Fig. l is aper spective'view of a cleaner rod; and Figs, 5, 6 and 7 are longitudinal sections illustrating further modifications.

Like numerals of same parts in the several figures'of the drawm s. p

Referring particularly to Figs. 1 and 2 of .the -drawings,. 1 represents the bowlof the pipe and 2 the stem. :Ihe stem :is here shown as made in two sections, the lower sec- Specification-of Letters Patent. Application filed February 5,1907. Serial No. 355,901.

reference indicate the Patented June 16,1908.

.tion 3 being integral with the bowl and the upp'ersection 4 provided with a reduced part 5 extending 'into the lower part 3, which is .held thereon by frictional engagement. The bit 6 is shown as integral with the upper'section 4 of the stem. It is obvious that these I -are constructional details and might be varied to any extent. f [The stem has a straight bore in which is locateda plug 7 which extends out of the stem and is provided with the finger-piece 8. On the stem is the threading 9 which forms, with the inner surface of the stem, a helical smoke passage-way 10. The bowl and the interior of the stem are connected by a channel 11 and in the stem below the openim of this channel is preferably a chamber or podlxet 12. Theplugispreferablyformedwitha central airduct 13 which, it will be seen, terminates near the upper end of channel 114 .The bit has the ordinary bore 14,; which is enlarged at 1.5, so that it will not be stopped up (by the threading of the plug. 4 1 In Fig; 3 I have shown-a modified form of pipe, in which the plug is inserted from-the ottom. 16 represents, the bowl integral with the stem 17, the bowl and the interior of the stem being connected by the channel-18. The bit 19is made separate and the stein held thereto b frictional engagement. The plug \22 is s' ar to the lug above described and forms, by means of its threading, a cirycuitous assa e-way for the smoke. Prefer- .ably it as t e reduced ortion '23 at the lower end forming. a charm er 24 at the bot- .tomof thechannel 18. The plug is provided with an exterior finger-piece 25, by means of which it may be readily withdrawn from the 'stem..-

I Theoperation of the device is as follows Referring particularly 'to Fig. 1,- the smoke from the bowl asses through channel 11 and thence through the circuitous passage-way for-med in the plug to the bit. .In passing through the convolutions of this passagg-way the smoke will be effectively coo ed, t 's operation being aided by the draftof cool an passing through the central duct 1n the plug.

t will be observed that eachtime the p pe is drawn airwillenter the stem not only throu h the-bowl but also throughthis airduct. T e duct terminates near the beginning of the eucuitous passage-way, and, t erefore, tends to keep'thesurfaces in this vicin ty cool, so as to cause the preci itation offthe moisture winch willi-be'receive in the chamber or pocket 12.

The plu is readily removable by merely pulling on t e finger-piece 8 and without, in any manner, disturbing the other parts of the posited in that place instead of being carried through the smoke passage-way in the plug.

In Fig. 4 I have illustrated a rod 26 havingthe head 27, this rod being adapted to be used as a cleaner. flexible material and may be used to stop up the airduct in the pipe, shownin Fig. 1, when it is desired to use the pipe without the down draft feature, In Figs. 5, 6 and 7, I have shown three modified structures illustrating difierent adaptations of the principles above set forth. In Fig. 5 the threaded plug 28' is attached to the end of the bit 29 and has a projection 30 extending into the, part of the stem 31 integral with the bowl 32. The plug has a perforation 33 connecting'the interior of the stem with the threading and a perforation 34 connecting the threading with the bore 35 in the bit. A sleeve 36 surrounds the plug. In Fig. 6 the arrangement is similar,

except that the sleeve here designated by the numeral 37 extends into the part 31. In this case the threading communicates directly with the chamber in the stem below the plug. Fi 7 shows a straight pipe consisting of the bowl 38, integral stem 39, lug 40 attached to bit 41, the threading o the plug being connected with the bore of the bit y a erforation- 32. The operation of these mo scription of the structure.

I wishv't to be understood that I do not desire to be limited to the precise arrangements and constructions shown and described, for obvious modificationswill occur to those skilled in the art. I have illustrated and described several features which I prefer to use together in a single pi e but, as indicated, certain features might e omitted, de ending, upon the particular construction of t e pipe chosen.

' I claim:-

1. In a tobacco pipe, the combination of a bowl, with a stem, and a lugin the stem having an exterior groove orrning a smoke passage-way and provided with a central air duct, said plug provided with a part exterior tothe stem, whereby the plug may be removed from the stem without disturbing the other parts of the pi e.

. 2. In a tobacco ipe, t e combination of a bowl, with a stem avin a bore terminating in a pocket, a plug in t e outer end of the It may be made of somewhat cations will be obvious from the de-.

bore, and a channel from the interior of the. I

bowl to the bore of the stem above the pocket, said plug being formed with a circuitous smoke passage-way and an air duct, said air duct and passage-way terminating above the pocket.

3. In a tobacco pipe, the combination of a bowl, with a stem having a bore, a channel leading from the interior of the bowl to the bore in the stem, a removable plug in the bore having a smoke passage-way formed therein, and a bit oif-set from the stem so as to permit the removal of the plug therefrom with its perforation communicating with the smoke passage-way int'he plug.

4. In a tobacco pipe, the combination of a a bowl, with a stem, a plug in the stem, said plug formed with two passage-ways, a smoke stem for forming a helical smoke passageway and an air duct centrally of the smoke passage-way.

6. In a tobacco pipe, the combination of a bowl, with a stem, a plug in the stem, said plug being formed with an external smoke passage-way, an internal air duct, said airuot arranged so that when the pipe is drawn air will be conducted inwardly toward the bowl, and a channel from the bowl to the iriterior of the stem below the end of the ug. I i

7. In a tobacco pipe, the combination of a bowl, with a stem, and means within the stem forming a smoke passage-way and an air duct, said air duct arranged so that when the ipe drawn air will be conducted inwar ly toward the bowl, said means affording a condensing surface opposed to the passage of the smoke and in proximity to the discharge endof the air duct..

,8. A tobacco pi e having a smoke passage way extending through the stem thereof,

and a second passage-way to admit air into' the interior of the pipe, said second passageway arranged so that when thepipe 1s drawn air will be conducted inwardly toward the bowl of the ipe, inconrbination with a rod adapted to e received 1n and to close said second passagerway.

9. A tobacco ipe having a smoke passage way extending t rough the stem thereof, and a second passage-way to admit an to the interior of the plpe, said second passage-way arranged so that when the pipe 1s drawn air will be conducted inwardly toward the bowlv 

